thanks Eric I am sorry ,I will not do that again .but would you please help me figure out this problem. as I mentioned the USB speed is not a problem.and i have another C++ problem test_usrp ,it's a one channel receiver , the decim is set to 8.and it does work without any trouble .so i think my pc can keep up with the speed<br><br>在2010-05-28 02:35:37，"Eric Blossom" <[email protected]> 写道： >On Thu, May 27, 2010 at 05:29:56PM +0800, weizhongshan wrote: >> hello everyone ,I want to use the fm_tx_2_daughters.py as a template to >> realize my own module ,so I copy it to my own folder. >> but when I set the interpolate to 64 and test the copy module ,"uU" >> appears.then I run the usrp_benchmark_usb.py,the result shows "Max USB/USRP >> throughput = 32MB/sec".I wonder the "uU" appears >> thanks forward<br><br>在2010-05-27 >> 00:00:43，[email protected] 写道： > >Perhaps your machine can't keep up? >uU is "USRP Underrun". You failed to send it samples fast enough. > >[Also, please don't top-post in general, and never top post on top of >the digest. Pick a relevant subject, trim all unnecessary text from >anything you're replying to. If you're starting a new thread, don't >start by replying to an existing (non-relevant) thread. > >See also: > > http://gnuradio.org/redmine/wiki/gnuradio/ReportingErrors > >Eric
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